JP2023500117A - リチウムイオン電池のコバルトフリー正極材料、その調製方法およびリチウムイオン電池 - Google Patents
リチウムイオン電池のコバルトフリー正極材料、その調製方法およびリチウムイオン電池 Download PDFInfo
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- JP2023500117A JP2023500117A JP2022525768A JP2022525768A JP2023500117A JP 2023500117 A JP2023500117 A JP 2023500117A JP 2022525768 A JP2022525768 A JP 2022525768A JP 2022525768 A JP2022525768 A JP 2022525768A JP 2023500117 A JP2023500117 A JP 2023500117A
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- cobalt
- lithium
- sulfate
- free
- positive electrode
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 74
- 239000010406 cathode material Substances 0.000 title claims abstract description 59
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- BDKWOJYFHXPPPT-UHFFFAOYSA-N lithium dioxido(dioxo)manganese nickel(2+) Chemical compound [Mn](=O)(=O)([O-])[O-].[Ni+2].[Li+] BDKWOJYFHXPPPT-UHFFFAOYSA-N 0.000 claims abstract description 86
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 30
- 239000000203 mixture Substances 0.000 claims abstract description 28
- 238000002156 mixing Methods 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000007774 positive electrode material Substances 0.000 claims description 88
- 238000006243 chemical reaction Methods 0.000 claims description 37
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 33
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 33
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 33
- INHCSSUBVCNVSK-UHFFFAOYSA-L lithium sulfate Inorganic materials [Li+].[Li+].[O-]S([O-])(=O)=O INHCSSUBVCNVSK-UHFFFAOYSA-L 0.000 claims description 15
- RBTVSNLYYIMMKS-UHFFFAOYSA-N tert-butyl 3-aminoazetidine-1-carboxylate;hydrochloride Chemical compound Cl.CC(C)(C)OC(=O)N1CC(N)C1 RBTVSNLYYIMMKS-UHFFFAOYSA-N 0.000 claims description 15
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 14
- 229910001882 dioxygen Inorganic materials 0.000 claims description 14
- 239000011247 coating layer Substances 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 12
- 125000004434 sulfur atom Chemical group 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 230000035484 reaction time Effects 0.000 claims description 5
- HPCCWDVOHHFCKM-UHFFFAOYSA-M lithium;hydrogen sulfate Chemical compound [Li+].OS([O-])(=O)=O HPCCWDVOHHFCKM-UHFFFAOYSA-M 0.000 claims description 4
- 150000003467 sulfuric acid derivatives Chemical class 0.000 claims description 4
- GJAROXYKDRBDBI-UHFFFAOYSA-J [W+4].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O Chemical compound [W+4].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GJAROXYKDRBDBI-UHFFFAOYSA-J 0.000 claims description 3
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 3
- OZECDDHOAMNMQI-UHFFFAOYSA-H cerium(3+);trisulfate Chemical compound [Ce+3].[Ce+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O OZECDDHOAMNMQI-UHFFFAOYSA-H 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- ZXAUZSQITFJWPS-UHFFFAOYSA-J zirconium(4+);disulfate Chemical compound [Zr+4].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZXAUZSQITFJWPS-UHFFFAOYSA-J 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 150000001447 alkali salts Chemical class 0.000 claims description 2
- 229910021653 sulphate ion Inorganic materials 0.000 claims 1
- 239000003513 alkali Substances 0.000 abstract description 35
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 19
- 239000003792 electrolyte Substances 0.000 description 19
- 238000010586 diagram Methods 0.000 description 9
- 239000008151 electrolyte solution Substances 0.000 description 9
- 230000014759 maintenance of location Effects 0.000 description 9
- 238000000576 coating method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- FRMOHNDAXZZWQI-UHFFFAOYSA-N lithium manganese(2+) nickel(2+) oxygen(2-) Chemical compound [O-2].[Mn+2].[Ni+2].[Li+] FRMOHNDAXZZWQI-UHFFFAOYSA-N 0.000 description 7
- -1 ammonium ions Chemical class 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 5
- 229910052808 lithium carbonate Inorganic materials 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 238000007086 side reaction Methods 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 2
- 239000004327 boric acid Substances 0.000 description 2
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- ZRIUUUJAJJNDSS-UHFFFAOYSA-N ammonium phosphates Chemical class [NH4+].[NH4+].[NH4+].[O-]P([O-])([O-])=O ZRIUUUJAJJNDSS-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 229910021450 lithium metal oxide Inorganic materials 0.000 description 1
- FUJCRWPEOMXPAD-UHFFFAOYSA-N lithium oxide Chemical compound [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 description 1
- 229910001947 lithium oxide Inorganic materials 0.000 description 1
- ZAUUZASCMSWKGX-UHFFFAOYSA-N manganese nickel Chemical compound [Mn].[Ni] ZAUUZASCMSWKGX-UHFFFAOYSA-N 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
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- C01G53/00—Compounds of nickel
- C01G53/40—Nickelates
- C01G53/42—Nickelates containing alkali metals, e.g. LiNiO2
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- C01G53/44—Nickelates containing alkali metals, e.g. LiNiO2 containing manganese
- C01G53/50—Nickelates containing alkali metals, e.g. LiNiO2 containing manganese of the type [MnO2]n-, e.g. Li(NixMn1-x)O2, Li(MyNixMn1-x-y)O2
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Abstract
Description
本実施例は、コバルトフリー正極材料を提供し、具体的な調製方法は以下のステップを含む。
硫酸アンモニウムおよび実施例1で調製されたニッケルマンガン酸リチウムを用い、且つ、実施例1と同じ方法のステップでコバルトフリー正極材料(硫酸アンモニウムにより被覆されたニッケルマンガン酸リチウム)を調製し、実施例1との区別は、第1混合物のうち、硫酸アンモニウム中の硫黄原子の質量とニッケルマンガン酸リチウムの質量との比が0.5%であり、その後、取得された第1混合物を500℃で6時間反応させ、反応雰囲気で酸素ガスの体積%含有量が95%であり、反応終了後に自然降温して400メッシュの篩にかけ、コバルトフリー正極材料を取得したことであった。
本実施例は、コバルトフリー正極材料を提供し、具体的な調製方法は以下のステップを含む。
本実施例は、コバルトフリー正極材料を提供し、具体的な調製方法は以下のステップを含む。
本実施例は、コバルトフリー正極材料を提供し、具体的な調製方法は以下のステップを含む。
本実施例は、コバルトフリー正極材料を提供し、具体的な調製方法は以下のステップを含む。
本実施例は、コバルトフリー正極材料を提供し、具体的な調製方法は以下のステップを含む。
本実施例は、コバルトフリー正極材料を提供し、具体的な調製方法は以下のステップを含む。
本実施例は、コバルトフリー正極材料を提供し、具体的な調製方法は以下のステップを含む。硫酸アンモニウムおよび実施例1で調製されたニッケルマンガン酸リチウムを用い、且つ、実施例1と同じ方法のステップでコバルトフリー正極材料(硫酸アンモニウムにより被覆されたニッケルマンガン酸リチウム)を調製し、実施例1との区別は、硫酸アンモニウムとニッケルマンガン酸リチウムとの反応温度が900℃であった。
Claims (10)
- ニッケルマンガン酸リチウムと、強酸弱アルカリ塩である硫酸塩とを混合し、第1混合物を取得することと、
前記第1混合物を所定の温度で反応させ、前記コバルトフリー正極材料を取得することと、
を含む、リチウムイオン電池のコバルトフリー正極材料の調製方法。 - 前記硫酸塩は、硫酸アンモニウム、硫酸アルミニウム、硫酸水素リチウム、硫酸ジルコニウム、硫酸セリウム、および硫酸タングステンから選ばれる少なくとも1種である、請求項1に記載の調製方法。
- 前記所定の温度は前記硫酸塩の融点よりも高い、請求項1または2に記載の調製方法。
- 前記所定の温度は500~900℃であり、前記反応時間は4~8hである、請求項1~3のいずれか1項に記載の調製方法。
- 前記第1混合物のうち、前記硫酸塩中の硫黄原子の質量と前記ニッケルマンガン酸リチウムの質量との比は0.1~0.5%である、請求項1~4のいずれか1項に記載の調製方法。
- 前記第1混合物の反応は酸素含有雰囲気で行われ、前記酸素含有雰囲気における酸素ガスの体積%含有量は20~100%である、請求項1~5のいずれか1項に記載の調製方法。
- 前記ニッケルマンガン酸リチウムと前記硫酸塩とは高速混合機器により混合され、前記混合時間が10~20minで、回転数が2000~3000rpmである、請求項1~6のいずれか1項に記載の調製方法。
- ニッケルマンガン酸リチウムと被覆層とを含み、前記被覆層は前記ニッケルマンガン酸リチウムの外面に被覆され、前記被覆層の材料は硫酸リチウムを含む、リチウムイオン電池のコバルトフリー正極材料。
- 前記コバルトフリー正極材料は、
前記コバルトフリー正極材料の遊離水含有量が200ppmよりも低いという条件と、
前記コバルトフリー正極材料の比表面積が0.2~0.9m2/gであるという条件と、
前記コバルトフリー正極材料の平均粒径が5~15μmであるという条件と、
の少なくとも1つを満たす、請求項8に記載のコバルトフリー正極材料。 - 前記リチウムイオン電池は、請求項8または9に記載のコバルトフリー正極材料を含む、リチウムイオン電池。
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CN111422920A (zh) * | 2019-12-26 | 2020-07-17 | 蜂巢能源科技有限公司 | 锂离子电池的无钴正极材料及其制备方法和锂离子电池 |
WO2022051982A1 (zh) * | 2020-09-10 | 2022-03-17 | 宁德时代新能源科技股份有限公司 | 电极活性材料及其制备方法及电极、电池和装置 |
CN112582597A (zh) * | 2020-11-20 | 2021-03-30 | 昆明理工大学 | 一种三元无钴正极材料的制备方法及改性方法 |
CN113072101B (zh) * | 2021-03-30 | 2023-04-07 | 蜂巢能源科技有限公司 | 一种无钴正极材料及其制备方法和应用 |
KR102317602B1 (ko) * | 2021-04-22 | 2021-10-25 | 에스케이이노베이션 주식회사 | 리튬 이차 전지용 양극 활물질 및 이를 포함하는 리튬 이차 전지 |
CN113735189A (zh) * | 2021-08-13 | 2021-12-03 | 荆门市格林美新材料有限公司 | 一种Al、Zr掺杂的高比表面积无钴前驱体的制备方法 |
CN114725357B (zh) * | 2022-05-06 | 2024-02-20 | 蜂巢能源科技股份有限公司 | 一种降低钠离子正极材料残钠含量的方法 |
CN115367816B (zh) * | 2022-10-27 | 2023-02-03 | 宜宾锂宝新材料有限公司 | 一种镍锰酸锂正极材料、其制备方法及锂离子电池 |
CN115924992B (zh) * | 2022-12-26 | 2024-04-19 | 蜂巢能源科技股份有限公司 | 无钴正极材料的制备方法、无钴正极材料及锂离子电池 |
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